Doubtful. Why would her symbolism still be part of the new logo if it took blue, yellow and pink to make her?
On one hand, fusion makes sense considering you can make white light through a subtractive mixture of yellow, magenta and cyan light.
And by keeping her symbolism around, you can keep the gem populace in control by leading them to believe white diamond is still watching them.
At the same time, the diamonds are revered as "perfect" which just kinda suggests that they either cannot fused, or never needed to.
Honestly this is all anecdotal, we'll see how this plays out later.